How to determine left or right handed golf swing?

Answer 1

When you are picking up the game you should try hitting left and right handed shots and see which you are most comfortable with. Just because you write right handed, doesn't mean you will play left handed. Phil Mickelson actually writes right handed. The vast majority of golfers are right handed, very few play left handed.

Answer 2

The speed of a persons Golf swing can be determined by clipping a swing speed clip to the club. These devices can be found in sporting goods stores.